preconditions. for "cbs this morning," holly williams, cairo. >>> in syria this morning, rebel troops declared the airport in damascus to be a fair target, warning civilians to stay away. growing concern that syria's government to use chemical weapons. hillary clinton joined her russian counterpart. this morning, elizabeth palmer reports, hillary clinton says there are no easy answers. >> meetings yesterday were important but just the beginning and added nobody should believe it represented a breakthrough. clinton was more frank on president bashar al assad's lack of a place in seary's polityria future. >> every syrian must be included in this process for a new and better future. a future of this kind cannot possibly include assad. we go into these discussions with a clear sense of what we want to see accomplished, but a realistic understanding of how difficult it still is. >> second clinton said there would be another meeting in the coming days to discuss the way forward. for c"cbs this morning," elizabeth palmer, london. >> james baker, secretary of state under president george h. w. bush an